kris/xmss-KAT-generator
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Remove unnecessary endianness difference

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The current code results in the same output regardless of endianness.
Verified using a QEMU VM to emulate MIPS.
This commit is contained in:
Joost Rijneveld 2017-10-19 17:20:38 +02:00
parent 2a89ca2874
commit 138a380a26
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GPG Key ID: A4FE39CF49CBC553
2 changed files with 0 additions and 7 deletions
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5
hash.c
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@ -10,14 +10,10 @@
unsigned char* addr_to_byte(unsigned char *bytes, const uint32_t addr[8]) unsigned char* addr_to_byte(unsigned char *bytes, const uint32_t addr[8])
{ {
#if IS_LITTLE_ENDIAN==1
int i; int i;
for (i = 0; i < 8; i++) { for (i = 0; i < 8; i++) {
to_byte(bytes + i*4, addr[i], 4); to_byte(bytes + i*4, addr[i], 4);
} }
#else
memcpy(bytes, addr, 32);
#endif
return bytes; return bytes;
} }
@ -90,7 +86,6 @@ int hash_h(const xmss_params *params,
set_key_and_mask(addr, 0); set_key_and_mask(addr, 0);
addr_to_byte(byte_addr, addr); addr_to_byte(byte_addr, addr);
prf(params, key, byte_addr, pub_seed, params->n); prf(params, key, byte_addr, pub_seed, params->n);
// Use MSB order
set_key_and_mask(addr, 1); set_key_and_mask(addr, 1);
addr_to_byte(byte_addr, addr); addr_to_byte(byte_addr, addr);
prf(params, bitmask, byte_addr, pub_seed, params->n); prf(params, bitmask, byte_addr, pub_seed, params->n);

2
hash.h
View File

@ -4,8 +4,6 @@
#include <stdint.h> #include <stdint.h>
#include "params.h" #include "params.h"
#define IS_LITTLE_ENDIAN 1
unsigned char* addr_to_byte(unsigned char *bytes, const uint32_t addr[8]); unsigned char* addr_to_byte(unsigned char *bytes, const uint32_t addr[8]);
int prf(const xmss_params *params, int prf(const xmss_params *params,